Designation:B176−17StandardSpecificationforCopper-AlloyDieCastings1ThisstandardisissuedunderthefixeddesignationB176;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationestablishestherequirementsforcopper-alloydiecastings.ThealloysspecifiedareCopperAlloyUNSNos.C85470,C85700,C85800,C86500,C87800,C99700,andC99750.21.2Units—Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:3B824SpecificationforGeneralRequirementsforCopperAlloyCastingsB846TerminologyforCopperandCopperAlloysE8/E8MTestMethodsforTensionTestingofMetallicMa-terialsE18TestMethodsforRockwellHardnessofMetallicMa-terialsE23TestMethodsforNotchedBarImpactTestingofMe-tallicMaterialsE255PracticeforSamplingCopperandCopperAlloysfortheDeterminationofChemicalCompositionE527PracticeforNumberingMetalsandAlloysintheUnifiedNumberingSystem(UNS)2.2ADCI/NADCAStandards:4“E”SeriesProductStandards2.3FederalStandard:5Fed.Std.No.123MarkingforShipment(CivilAgencies)2.4MilitaryStandards:5MIL-STD-129MarkingforShipmentandStorage(MilitaryAgencies)MIL-P-116MethodsofPreservation3.GeneralRequirements3.1ThefollowingsectionsofSpecificationB824constituteapartofthisspecification.3.1.1Terminology(Section3),3.1.2NumberofTestsandRetests(Section11)(Notetousers:Paragraph10.3ofSpecificationB824appli...
